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. 1991 Mar;59(3):1170–1171. doi: 10.1128/iai.59.3.1170-1171.1991

Virulence of ureaplasmal urease for mice.

J V Ligon 1, G E Kenny 1
PMCID: PMC258383  PMID: 1997418

Abstract

Ureaplasmas killed mice within 5 min after intravenous injection. The 50% lethal dose of whole ureaplasmal organisms was 32 micrograms per mouse, a value also found for crystalline jackbean urease. The reaction was specific to urease, since protection was afforded by intraperitoneal injection of 200 micrograms of flurofamide, a potent urease inhibitor. The finding that a similar lethal effect was produced by injection of 200 mumol of NH4+ indicates that the toxicity of urease is mediated by ammonium ions or free ammonia.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Ball H. J., McCaughey W. J. Investigation into the inhibitory effect of flurofamide on animal ureaplasmas and its use in the treatment of ureaplasma-infected sheep. J Vet Pharmacol Ther. 1986 Sep;9(3):280–285. doi: 10.1111/j.1365-2885.1986.tb00042.x. [DOI] [PubMed] [Google Scholar]
  2. Blanchard A., Razin S., Kenny G. E., Barile M. F. Characteristics of Ureaplasma urealyticum urease. J Bacteriol. 1988 Jun;170(6):2692–2697. doi: 10.1128/jb.170.6.2692-2697.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Clerc M., Texier J., Bebear C. Experimental production of bladder calculi in rats by ureaplasma injection. Ann Microbiol (Paris) 1984 Jan-Feb;135A(1):135–140. doi: 10.1016/s0769-2609(84)80070-8. [DOI] [PubMed] [Google Scholar]
  4. Hedelin H., Brorson J. E., Grenabo L., Pettersson S. Ureaplasma urealyticum and upper urinary tract stones. Br J Urol. 1984 Jun;56(3):244–249. doi: 10.1111/j.1464-410x.1984.tb05381.x. [DOI] [PubMed] [Google Scholar]
  5. Kenny G. E., Cartwright F. D. Effect of urea concentration on growth of Ureaplasma urealyticum (T-strain mycoplasma). J Bacteriol. 1977 Oct;132(1):144–150. doi: 10.1128/jb.132.1.144-150.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Kenny G. E. Heat-lability and organic solvent-solubility of mycoplasma antigens. Ann N Y Acad Sci. 1967 Jul 28;143(1):676–681. doi: 10.1111/j.1749-6632.1967.tb27713.x. [DOI] [PubMed] [Google Scholar]
  7. Kenny G. E. Inhibition of the growth of Ureaplasma urealyticum by a new urease inhibitor, flurofamide. Yale J Biol Med. 1983 Sep-Dec;56(5-6):717–722. [PMC free article] [PubMed] [Google Scholar]
  8. Krieger J. N., Boatman E. S., Kenny G. E. Ureaplasma urealyticum upper urinary tract infection: persistence and pathogenicity in a canine model. J Urol. 1989 Jun;141(6):1437–1443. doi: 10.1016/s0022-5347(17)41341-3. [DOI] [PubMed] [Google Scholar]
  9. LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
  10. Masover G. K., Razin S., Hayflick L. Localization of enzymes in Ureaplasma urealyticum (T-strain mycoplasma). J Bacteriol. 1977 Apr;130(1):297–302. doi: 10.1128/jb.130.1.297-302.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Millner O. E., Jr, Andersen J. A., Appler M. E., Benjamin C. E., Edwards J. G., Humphrey D. T., Shearer E. M. Flurofamide: a potent inhibitor of bacterial urease with potential clinical utility in the treatment of infection induced urinary stones. J Urol. 1982 Feb;127(2):346–350. doi: 10.1016/s0022-5347(17)53779-9. [DOI] [PubMed] [Google Scholar]
  12. Pettersson S., Brorson J. E., Grenabo L., Hedelin H. Ureaplasma urealyticum in infectious urinary tract stones. Lancet. 1983 Mar 5;1(8323):526–527. doi: 10.1016/s0140-6736(83)92211-0. [DOI] [PubMed] [Google Scholar]

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